Alternatives for Parallel N x T1/E1 Connections (Cisco Systems)
The most common solution today for NxT1/E1 connections is the use of a hardware "inverse multiplexer". These devices distribute traffic to each link (round robin) at the bit or byte level to achieve a good balance of traffic across multiple links. However, these solutions are proprietary and relatively expensive to purchase and manage. Standards based, and software solutions are emerging to provide very cost effective solutions for NxT1/E1 connections that rival the functionality of dedicated hardware inverse multiplexers. These alternatives are:
- Traffic load balancing using Cisco Express Forwarding
- Multilink PPP for serial connections
- ATM Inverse multiplexing
Alternatives for Parallel N x T1/E1 Connections (pdf)
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